120345353 has 4 divisors (see below), whose sum is σ = 120454980. Its totient is φ = 120235728.

The previous prime is 120345341. The next prime is 120345359. The reversal of 120345353 is 353543021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 353543021 = 13 ⋅27195617.

It can be written as a sum of positive squares in 2 ways, for example, as 40921609 + 79423744 = 6397^2 + 8912^2 .

It is a cyclic number.

It is not a de Polignac number, because 120345353 - 2⁶ = 120345289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120345359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53150 + ... + 55367.

It is an arithmetic number, because the mean of its divisors is an integer number (30113745).

Almost surely, 2^120345353 is an apocalyptic number.

It is an amenable number.

120345353 is a deficient number, since it is larger than the sum of its proper divisors (109627).

120345353 is a wasteful number, since it uses less digits than its factorization.

120345353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109626.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 120345353 is about 10970.2029607478. The cubic root of 120345353 is about 493.7151359670.

Adding to 120345353 its reverse (353543021), we get a palindrome (473888374).

The spelling of 120345353 in words is "one hundred twenty million, three hundred forty-five thousand, three hundred fifty-three".